1 files changed, 26 insertions, 0 deletions

diff --git a/apps/iap/iap-lingo2.c b/apps/iap/iap-lingo2.c
index 4fbf730192..d4c2f18c2f 100644
--- a/apps/iap/iap-lingo2.c
+++ b/apps/iap/iap-lingo2.c
@@ -56,6 +56,7 @@ static void cmd_ack(const unsigned char cmd, const unsigned char status)
 
 void iap_handlepkt_mode2(const unsigned int len, const unsigned char *buf)
 {
+    static bool poweron_pressed = false;
     unsigned int cmd = buf[1];
 
     /* We expect at least three bytes in the buffer, one for the
@@ -136,6 +137,11 @@ void iap_handlepkt_mode2(const unsigned int len, const unsigned char *buf)
                     }
                 }
 
+                if (buf[4] & 2) /* power on */
+                {
+                    poweron_pressed = true;
+                }
+
                 /* Power off
                  * Not quite sure how to react to this, but stopping playback
                  * is a good start.
@@ -152,6 +158,26 @@ void iap_handlepkt_mode2(const unsigned int len, const unsigned char *buf)
                     REMOTE_BUTTON(BUTTON_RC_LEFT);
             }
 
+            /* power on released */
+            if (poweron_pressed && len >= 5 && !(buf[4] & 2))
+            {
+                poweron_pressed = false;
+#ifdef HAVE_LINE_REC
+                /* Belkin TuneTalk microphone sends power-on press+release
+                 * events once authentication sequence is finished,
+                 * GetDevCaps command is ignored by the device when it is
+                 * sent before power-on release event is received.
+                 * XXX: It is unknown if other microphone devices are
+                 * sending the power-on events.
+                 */
+                if (DEVICE_LINGO_SUPPORTED(0x01)) {
+                    /* GetDevCaps */
+                    IAP_TX_INIT(0x01, 0x07);
+                    iap_send_tx();
+                }
+#endif
+            }
+
             break;
         }
         /* ACK (0x01)